Loom-shuttle.



A. ISHERWOOD.

LOOM SHUTTLE.

APPLICATION 11.31) DBO. a1, 1910.

1,963,448. Patented June 3, 1913.

E- H AL WITNESSES.-

INVENTOI? g ig 60%; i a

A TTOHNEY UNTTEE STATES PATENT @FFTQE.

ALFRED ISHERWOGID, OF NEW BEDFORD, MASSACHUSETTS.

LOOM-SI-IUTTLE.

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[0 all whom it may concern:

Be it known that I, ALFRED IsI-InRwooo, a citizen of the United States,and a resident of New Bedford, in the county of Bristol and State ofMassachusetts, have invented a new and useful Improvement inLoom-Shuttles, of which the following is a specificm tion.

The present invention, which is an improvement on the loom-shuttledescribed in my application Serial No. 509,861, filed July 27, 1909,relates to threading devices for shuttles, especially automaticfilling-replen ishing shuttles, and its object is to improve andsimplify the construction thereof, and to render the same more eflicientand re iable in operation, in the manner hereinafter set forth.

With this object in view, my invention comprises a threader and aremovable eye that is preferably used in conjunction with said threader,although the threader may be used in shuttles of the type described inU. S. Letters Patent to Northrop, No. 926,016, dated June 22, 1909,which do not make use of a removable eye, and also the said eye is notnecessarily employed with the particular threader described herein, butmay be used with any suitable threader, such, for example, as thatdescribed in my application above referred to.

I shall describe my invention with reference to the drawings whichaccompany and form a part of this specification, although it will beunderstood that various modifications may be made in the particularembodiments of my invention therein illustrated without departing fromthe principle of my invention.

In the drawings, Figure 1 is a plan view of the outward or delivery endof my improved shuttle with the threader in place. Fig. 2 is a plan viewof said shuttle with the threader removed. Fig. 3 is a side view. Fig. 1is a longitudinal section taken on the line 41 of Fig. 1. Fig. 5 is atransverse section taken on the line 55 of Fig. 1. Fig. 6 is an end viewof one embodiment of my improved threader as viewed from the outward endof the shuttle. Fig. 7 represents a blank, preferably stamped out ofsheet metal,'from which the threader shown in Fig. 6 may be formed. Fig.9 is an end view of another embodiment of my threader which may beemployed in shuttles of the Specification of Letters Iatent.

Application filed December 31, 1910.

Patented June 3, 1913.

Serial No. 600,208.

Northrop type above referred to, which do not make use of a removabledelivery-eye. Fig. 8 represents a blank preferably stamped out of sheetmetal, from which the threader shown in Fig. 9 may be made. Fig. 12 is aplan view of one embodiment of deliveryeye that may be employed inconjunction with the threader shown in Fig. 6. Fig. 13 is a similar viewof a modification of said removable delivery-eye. Figs. 10 and 11represent blanks, preferably stam ed out of sheet metal, from which thede ivory-eyes shown in Figs. 12 and 13, respectively, may be formed.Fig. 14. is an end view' of the eye shown in Fig. 12 as seen from thefront of the shuttle. F 15 is a side View of the eye shown in F i 12,looking in the direction of the arrow shown in Fig. 14.

In order to more clearly define the several elements of my invention, Iadopt the same definitions of the terms frontward and rearward asapplied to the walls of the shuttle, and the terms inward and outward asapplied to the direction of the shuttle in operation, as have been setforth in the patent to Northrop aforesaid.

In the particular drawings selected for illustrating my invention, 1represents a selfthreading shuttle provided with the usual metallic tip2 and having the seats 1 and 5 and the channel 3 cut therein foraccommodating the threader. The seat 5 terminates in a beveled portion 6which leads to a substantially vertical slot 7, the latter communicatingwith the eye-socket. The out ward end of the shuttle is provided withtwo substantially )arallel grooves 8, 9, separated by a ridge 9 and eachof said grooves communicates with the socket which retains the eye.

The threader, which preferably is stamped out of a blank and folded intoshape along the dotted lines shown in Figs. 7 and 8, comprises a flange11 adapted to rest in the seat a and a flange 13 adapted to rest in theseat 5, and also a down-turned portion 14: which fits over the beveledpart 6 of the shuttle. The two side walls 12 12, which are substantiallyvertical, and the bottom 12, which is substantially horizontal, form achannel arranged to snugly fit the channel 3 of the shuttle. The topportion 17 of the threader is arranged over the eye and is provided atits rearward side with a threadguide 15 and a hook 16. The thread-guideis arranged to cooperate with a slot in the eye as hereinafter niorefully set forth and the bottom of the hook preferably is beveled asshown in Fig. 1 and extends rearwardly beyond the thread-guide as shownin Fig. 5, this being accomplished by having the bending line for saidhook arranged be yond the bending line of the thread-guide as shown inFig. 7. The outward end of the threader may be provided with a downwardly extending guard 20. The threader may be secured to the shuttle inany suitable manner, as, for example, by the usual bolt, shown at 18.

One form of removable delivery-eye that may be employed in conjunctionwith the threader above described is shown in Fig. 12 and consistsessentially of a tube formed from the sheet-metal blank shown in Fig.10. The tube is provided with a circumferential thread-receiving slot 22which intersects the longitudinal thread retaining slot 22 terminatingin the substantially circular hole 24, and which also intersects anotherlongitudinal slot 23 extending from the lower part of saidcircumferential slot to the delivery or front end of the eye. The lip 23is formed by bending the portion of the blank shown at 23 in Fig. 10under the surface of the eye, so that the lip passes under and extendsacross and beyond the slot 22. The eye is provided near its front endwith an outer tongue 26, the tip of which projects into the slot 26 soas to prevent the thread from leaving the eye after the shuttle has beenthreaded. In order to raise the thread above the tip of said outertongue, the lower part of the eye on either side of said slot 26 may beflattened and raised, and preferably the lower part of the frontwardportion of the eye is so constructed, as shown at 28. In order to moreefficiently guide the thread between the eye and the outer tongue, I mayprovide the eye with a longitudinally extending thread-guiding lip 27.The eye is also provided with an intermediate or inner tension tongue25, which as shown in Fig. 14, extends preferably diagonally across theeye and terminates at one wall of the slot 25. This tension tongue,unlike the outer tongue 26, does not merely enter its slot, but projectsthrough the same, so that its outer end is flush with the wall of theeye as indicated in Fig. 1 1, and therefore no passageway is affordedbetween said outer end of said tension tongue and the wall of said slot.To make this matter clearer, in Fig. 14. I have indicated the positionof the thread A with respect to the two tongues 25 and 26.

Ordinarily the eye is inserted in the shuttle so that the longitudinalslot occupies a position substantially as shown in Fig. 2. The threaderis then so inserted that the thread-guide 15 projects into thecircumferential slot 22 of the eye, as clearly shown in Fig. t, and whenso located the hook 15 will extend into the groove 9 and the guard 20into the groove 8.

The operation is as follows: On the inward movement of the shuttle, thethread A is wound off the bobbin C and the outer end thereof, eithermanually or otherwise, is brought over the rearward side of thethread-guide until it passes under the hook, the thread at this stagetaking the position shown in the dotted line AA in Fig. 1. On theoutward movement of the shuttle the thread passes under the guard 20 andalong the outward edge of the guide into the circumferentialthread-receiving slot 22, and thence passes into the longitudinalthreadretaining slot 22, passing on its way between the upper side ofthe lip 23 and the under side of that portion of the wall of the eyewhich said lip underlies. The free end of the thread passes into thelongitudinal slot 23 and thusunder the tip of the outer tongue 26 andinto the eye, being guided therein by the thread-guiding lip 27, so thatat the completion of the outward movement of the shuttle, the thread hasthe position shown by the dotted line A'A in Fig. 2;

It will be noted that the thread is now retained in the hole 24 at theend of the threadretaining slot located substantially at the top of theeye, and that in order to leave the eye, the thread must pass under thetensiontongue 25, there being as above stated, no passageway betweensaid tongue and its cooperating slot. Therefore the thread is put undera certain amount of tension, such tension depending on the position orinclination of said tension-tongue with respect to the walls of the eyeand the thread-retaining slot. By rotating the eye about its longitudinal axis, or by bending thetension-tongue and thereby changing theinclination of the same, the tension to which the thread is subjectedmay be varied at will.

When the threader is employed with a shuttle of the Northrop type, Iprefer to cut off the thread guide 15 as indicated at 15 in Figs. 8 and9, and to employ a longer guard 21 which extends into the slot 8.

The modified eye 19, shown in Fig. 13 is identical in all respects withthat shown in Fig. 12, except that the circumferential thread-receivingslot 22 is longer than the corresponding slot 22 of Fig. 12, and theslot 28 which connects said circumferential slot with the hole 24extends diagonally along the top wall of the eye. The obj ect of thisconstruction is to facilitate the passage of the thread through the slot23 to the hole 2 1 and between the lip 28 and the wall of the shuttlewhich it underlies.

I claim:

1. In a loom-shuttle provided at its outward end with two substantiallyparallel longitudinal grooves separated by a ridge,

a threader having a hook extending downwardly into one groove and aguard extending downwardly into the other.

2. In a loom-shuttle provided at its outward end with two substantiallyparallel longitudinal grooves separated by a ridge, a threader having ahook extending downwardly into one groove, a guard extending downwardlyinto the other, and a thread guide located between said hook and thebobbin.

3. In a loom-shuttle, a removable delivcry-eye inserted transverselyinto the throat of the shuttle and provided with a slot, and a threaderhaving a thread-guide projecting into said slot, said threader beingprovided with a hook at its outward end, and said hook extendingdownwardly into a groove at the outer end of the shuttle.

4. In a loom-shuttle, a removable delivery-eye inserted transverselyinto the throat of the shuttle and provided with a slot, and a threaderhaving a threadguide projecting into said slot, said threader beingprovided with a hook and a guard at its outward end.

5. In a loom-shuttle, a removable delivery-eye inserted transversely inthe throat of the shuttle and provided with a thread retaining slot andan inner tension-tongue extending across the lower portion of said eyeand so arranged as to retain the thread between itself and the lowerwall of the eye between said slot and the frontward end of said eye.

6. In a loom-shuttle, a removable delivery-eye inserted transversely inthe throat of the shuttle and provided with a thread-retaining slot, aninner tension tongue extending across the lower portion of said eyebetween said slot and the frontward-end of said eye and so arranged asto retain the thread bet-Ween itself and the lower wall of the eye, andan outer tongue having its tip entering a slot in the wall of said eye.

7. In a loom-shuttle, a removable delivery-eye inserted transversely inthe throat of the shuttle and provided with a threadretaining slot, aninner tension tongue extending across the lower portion of said eyebetween said slot and the delivery-end of said eye, and an outer tonguehaving its tip entering a slot in the wall of said eye, the lower partof the frontward portion of the eye being flattened and arranged abovethe tip of said tongue.

8. In a loom-shuttle, a removable delivery-eye inserted transversely inthe throat of the shuttle and provided with a thread retaining slot, anouter tongue having its tip entering a slot in the Wall of said eye, thelower part of the frontward portion of said eye being flattened andarranged above the tip of said tongue, and a longitudinally-extendingthread-guiding lip on the frontward portion of said eye arranged toguide the thread bet-ween the eye and said outer tongue.

9. In a loom-shuttle, a removable delivery-eye inserted transversely inthe throat of the shuttle and provided with a threadretaining slot, andan outer tongue having its tip entering a slot in the wall of said eye,the lower part of the frontward portion of said eye being flattened andarranged above the tip of said tongue.

10. In a loom-shuttle, a removable delivery-eye inserted transversely inthe throat of the shuttle and provided with a threadretaining slot, anouter tongue having its tip entering a slot in the wall of said eye, anda longitudinally-extending thread-guid ing lip on the lower part of thefrontward portion of said eye arranged to guide the thread between theeye and said outer tongue.

11. In a loom-shuttle, a removable delivery-eye inserted transverselyinto the throat of the shuttle and provided with a slot, and a threaderhaving a thread-guide projecting into said slot, said threader beingprovided with a hook at its outward end and said hook extendingrearwardly beyond said guide and extending downwardly into a groove atthe outward end of the shuttle.

12. In a loom-shuttle, a removable deliv ery-eye inserted transverselyinto the throat of the shuttle and provided with a slot, and a threaderhaving a thread-guide projecting into said slot, said threader beingprovided with a guard at its outward end and said guard extendingdownwardly into a groove at the outward end of the shuttle.

In testimony whereof, I have hereunto subscribed my name this 28th dayof Dec. 1910.

ALFRED ISHERIVOOD.

IVitnesses ALsToN H. GARSIDE,

MARGARET A. FRANKLIN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington. D. C.

